Patents by Inventor Sang-Hoon Rha

Sang-Hoon Rha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7731147
    Abstract: A universal bookholder which receives a book therein in a folder type, and which is portable and usable anywhere at any time to allow a user to read a book thereon is disclosed. The universal bookholder includes a pair of cover members for forming an inner space to receive a book therein when being folded and for supporting both sides of the book when being opened, a supporting unit combined between the pair of cover members so as to be folded with the cover members, a string installed in the supporting unit to traverse papers of the book for fixing the received book, at least one guide member mounted in the pair of cover members, and a clamp movably combined to the guide member for fixing a paper of the received book.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: June 8, 2010
    Inventor: Sang-Hoon Rha
  • Publication number: 20070007422
    Abstract: A universal bookholder which receives a book therein in a folder type, and which is portable and usable anywhere at any time to allow a user to read a book thereon is disclosed. The universal bookholder includes a pair of cover members for forming an inner space to receive a book therein when being folded and for supporting both sides of the book when being opened, a supporting unit combined between the pair of cover members so as to be folded with the cover members, a string installed in the supporting unit to traverse papers of the book for fixing the received book, at least one guide member mounted in the pair of cover members, and a clamp movably combined to the guide member for fixing a paper of the received book.
    Type: Application
    Filed: January 15, 2004
    Publication date: January 11, 2007
    Inventor: Sang-Hoon Rha